Items tagged with degree

I am having 26th degree polynomial univariate equation , I used Isolate to get the roots. but I am getting some extra roots which are not true they I even tried to substitute those roots in original equation then I got non zero answer instead of getting nearly zero answer.How is it possible??

Here we have an application to understand how algebraic expressions, calculating degrees relative abosulutos polynomial operations and introduction to work.Here we have an application to understand how algebraic expressions, calculating degrees relative abosulutos polynomial operations and introduction to work.

I'm looking at Maple as a possible alternative to Mathcad (which I've been using for years, but is now very jaded compared to other options like Maple and Mathematica). I'm a civil engineer and for what I do, one of the better features of Mathcad is the way it handles units. For example, if I specify an angle in degrees (say phi=30 degrees) and then ask for sin(phi), I get 0.5. At face value, I though Maple would do the same kind of thing. However, this doesn't appear to be the case (see attached worksheet). The only workaround that I can see is to specify the angle in degrees (but without assigning ) and then multiply the specified value by pi/180 (to convert to radians) before passing it to the sin function. Which is all a bit messy and not at all an attractive solution.

Am I misunderstanding the way units work in Maple and is there a clean way of specifying angles in degrees (which is what engineers work with) and using these values directy in trig functions?

The question has been asked at http://www.mapleprimes.com/questions/133139-A-Question-About-Obtaining-Power-Of-A-Variable

However, still, I would like to have a simple, straightfoward solution. The situation is not about several term case, x^a*y^b + x^(a+2)*y^b, but for a single term. I have a term "3*x^k*y^(k+2) ", and how should I do to obtain the power of x, and the power of y? (k and k+2)